Brush-making machine



Dec. 26, 1922.

w. T. SHERMAN.

BRusH MAKING MACHINE,

FILED use 30. I919. 4 SHIEETSSHEET I In we for Q7. JZLW y m Jzfarrz e 1 Dec. 26, 1922.

W. T. SHERMAN. BRusH MAKaNc MACHINE.

4 SHEETS-SHEET 3 FILED DEC- 30, I919.

flitorney In ventar Dec. 26, 1922.

1,439,766 W. T. SHERMAN.

BRUSH MAKING MACHINE. FILED use. 30. 1919.

4 SHEE 1'-S'SHEET 4 Inverziar Patented .Uec. 2%, i922.

. WILLIAM T.

p Y wares Unites stares Pmenr clerics.

SHE MAN, or TR0Y-,.1\T-EW'YQBKQASSIGNOBVTO HENRY L. nuenns (10., me, or New YORK, N. Y., A conrona'rron or unwronn.

, ,BRUSH-MAKING MACHINE. I

Application filed December so; 1919. Serial 110,348,334.

To aZZ whom it may concern Be it known that I, lVILLr M T. SHER- MAN, a citizen of the United States, residing at Troy, in the county of Rensselaer and State of New York, have invented new and useful Improvements in BrushMaking Machines, of which the following is a specification. I 5 I Reference may be had to the accompanying drawings, and the referencecharacters marked thereomwliich form av part offthis elevation ofa press-mechanism which com- .specificationi' Similar characters'refe'r to vsimilar parts inthe severalfignres therein. This invention relates more particularly to'machines for themanufact ureof bristle supporting rubberpads suitable for hair brushes and the like.

' In such pa'dsathe' bristles are inserted separately orin. groups: of two, or more through smallapertures' in the' pad, the inner ends of thebristles being-provided with heads or offsets which are covered in some suitable manner with a backing-sheet whereby the bristlesare permanently mounted in the rubber pad.

In United States Letters Patent No. 1,32et,178, granted to me December 9, 1919, I have shown and 'described the manner in which such a pad is filled with bristles,'and

reference may be had to said Letters Pat.-

cut for a more complete understanding of the nature and objects of the'present invention. As shown-in said Letters Patent the insertion of the bristles into the holes in the rubber padis facilitated by first forcing a tube through eachhole in the pad and then inserting the bristles through the tubes, afterwhichthe tubes are'withdrawn from the pad, leaving thebristles occupying the respective holes in the pad.

litis of'course desirable that the holes in the pad should be as small as possible in order to tightly engage the inserted bristles; and obviously as the tubes arev necessarily of larger diameter than thebristles, considerable resistance is offered to the forcing of the tubes through the respective holes in the pad.

g The principal object ofthe present invention is to facilitate the insertion ofthe tubesthrough the rubber pad I have ascertained and demonstrated that the insertion ofithe tubes through the'pad can be greatly facilitated by'first-forcing taken 'on'the broken portion-of the bed of the through the respective holes in the pad, pins of a sizeadaptedto enter theres'pective tubes andthen forcingthe tubesover the respective pins and through the respective apertures'in thepa'd, after which the pins can be withdrawn leavingthe tubes inserted through the pad; Other objects of theinvention will ap-' pear in connection with, the following description.

Fig. 1 of the drawingsis aview" in side same with the handlepartly broken away,

' Fig. .3. is a horizontal section of'the same line 33 in Figs. 1 and v f Fig. 45 is a plan-view of a broken-away press and" the mechanism mounted thereon.

' '5 is a central vertical longitudinalsection of a broken-away head portion of the press taken on the broken-line,5-5 in Fig. 2.

Fig.

6, is-a vertical cross-section of the same taken on Fig. 7 is a'view in cross-section of one of the rubberpac'ls. w

Fig; 8 is a slmilarview of a tube-plate ha ing tubes adapted'to beinserted through the respective apertures in said pad.

Fig. 9'is' a similarvi'ew of the guide-andstripper-plate. I

g. 9 is a similar view showing the rubber pad mountedupon the guidennd-strip' per-plate.

the broken line 6.6. in

Fig; 10 is a cross-section taken on the broken line 10- 10 in Fig.4, through the base of the press and the mechanisms mounted thereon.

-Fig. 11 is a similar view showing the guide-and-str1pper-plate w th the rubber pad mounted thereon impaled upon thepins bythe first operation of the press;

Fig; 12 is a similar view illustrating the" manner in which the tubes are guided upon the pinsbythe guide-and-stripper-plate, in position to be forced throughthe rubber Fig. 13 is a similar view showing the tubes fully inserted through'the padwhile." the pins still remain within the tubes.-

her and location with the holes, 2, in the Fig. ll is; a similar view showing the tubesupporting plate and the guide-and-stripper-plate, andthe rubber pad mounted upon the tubes.

Referring to the drawings wherein the invention'is shown in preferred form, 1 is a pad or sheet of soft vulcanized rubber having numerous small perforations, 2,,each

:ulapted to receive a single bristle oi" a group through the respective perforations, 2 in the rubber pad,

The guideand-strlpper-plate. 5, is provided'wlth holes, 5 corresponding 1n numrubber pad, and with the tubes, 4, in the tube-plate,.3. I

These holes, 5 in the guide-and-stripperplate are, adjacent to the under surface of the plate,'severallyof a diameter adapted to receive the respective tubes, 4, while the por tion of each hole adjacent to the upper side of the plate is flared to more freely receive these tubes, 4, so as to guide the tubes into the cylindrical portions .of the respective openings. i

The guide-and-strippenplate has a pairof gage-pins, 5", projecting from its underside upon which the rubber pad, 1, .can be impaled, the rubber pad being provided with. similarly located openings, 9f, adapted to receive the respective gage-pins with the axes of the openings, 2, alined with the respective axes of the openings, 5, in the guide-and-stripper-plate.,

In addition to this guiding function of the plate, 5, it serves as a convenient means for stripping the rubber pad off from the tubes afterv the function of the tubes has been accon'iplished in the inserting of the bristles through the pad.

In carrying out my invention in its preferred form, l employ a press having a base or bed, 6, and a movable member, 7, adapted to be moved toward and from the bed by moment a toggle-joint, 8. the upper member of which has a projecting handle, whereby the press may be operated.v

The base. 6, of the press has on its upper side a pair of undercut-slideways, 10, adapted to receive a slide-plate, 11, removably-held in position upon the bed by means of latches, 12.

Formed as a part of or fixedly mounted upon the slide-plate, 11, is a pin-supporting plate, 13,having pins, 14, projecting upwardly therefrom, corresponding in number openings, 18, in the tube-carrying plate, 3,

and guide-and-stripper-plate, 5, whereby said tube-supporting plate, and said. guideand-stripper-plate are movably supported in the path of the movable member, 7, of the press, and the pins, 14, are caused to enter the respective tubes, 4, as the tube-carrying plate is forced byt-he movable member, 7, of the press toward the base, 6, of'the press,

-withthetubes entered within the flared ends of the respective openings, 5, infithe guide -and-stripper-plate.

Theoperationof the apparatus is asfollows: g

The rubber pad, 1, isimpaled upon the pins, 5 of the guide-and-stripper-plate, 5, thus locating the perforations, 2, in the rubber pad in alinement with the axes of. the respective openings, 5*, in the guideandstripper plate. The movable member, 7 of 'thepress being raised, the guide and -stripper-plate, 5, having the rubber pad thus mounted upon its underside, is applied to I the guide-pins,17, thus bringing into axial alinement the pins, 14, with the respective openings, 2, in the rubber pad and the respective openings, .5, in the guide-and-strip- .per-pla te.

The guide-and-stripper-plate is then forced downward by the downward movement of the movable member, 7, of the press caused. by operatingthe handle, 9, thus im paling the rubber pad, 1, upon the pins, 14, with the upper ends of said pins passing within the cylindrical portions of the respective openings, 5 int-he guide-and-stripperplate as. shown in Fig. 11. The movable member, 7, of the press is then raised and the tube-plate, 3, is applied to the guide pins, 17,,thusbringingits downwardly prw jecting tubes into substantial aliuement with the openings, 5. in the guide-andstripper plate. The movable member, 7. of the press is then again forced downward causingthe lower ends of the tubes, 4, to enter the flared ends of the respective openings, 5, in the guide-and-stripper-plate whereby the respective tubes are guided and centered with respect to the cylindrical portions of said openings, u, and thus caused to receive the upper ends of the respective pins, 14.

The final downward movement ofthe movapin-supporting member; and a stripper-plate provided with openings for the respective tubes.

6. In an apparatus of the class described and in combination, apress havinga bed, a member movable toward and from the bed, and means for moving said movable member; a pin-supporting member mounted upon said bed and having a pad-supporting surface provided with tube-receiving openings; pins projecting through the respective openings beyond said pad-supportingsurface; tube-carrying plate having projecting tubes arranged to correspond with the respective pins; andvguiding mechanism whereby said tube-supporting plate is movably supported in the path of said movable member of the press with the tubes in alinement with the respective pins.

7- In an apparatus of the class described and incombination, a press having a bed, a member movable toward and from the bed; and means for moving said movable member; av pin-supporting member mounted upon said bed and having a pad-supporting i surface provided with tube receiving openings; plns projecting through the respective openings beyond said padsupporting surface; a tube-carrying plate having projecting tubes arranged to correspond with the respective pins; guiding mechanism whereby said tube-supporting plate is movably supported in the path of said movable member of the press with the tubes in alinement with the respective pins; and a stripper-plate provided with openings for the respective tubes.

8. In an apparatus of the class described and in combination, a press having a bed.

a member movable toward and from the bed, and means for moving said movable member; a pin-supporting member mounted upon said bed and having a pad-supporting surface provided with tube-receiving openings; pins projecting through the respective openings beyond said pad-supporting surface; a tube-carrying plate having projecting tubes arranged to correspond w'iththe respective pins when the plate is located in the path of said movable member of the press; and tube-plate-engaging hooks carried by said movable member of the press for withdrawing the tube plate and tubes from the pins.

9. In an apparatusol' the class described and-in combination, a press having a bed, a member movable toward. and from the bed,

and means for moving said movable member; a pin supporting member mounted upon said bed and having a pad-supporting surface provided with tube-receiving openings; pins projecting throughthe respective openings beyond said pad-supporting surface; a tube-carrying plate having projecting tubes arranged to correspond with the respective pins; uiding mechanism whereby sald tube-supporting plate is movably supported in the path of said movable member of the press with the tubes in alinement with the respective pins; and tubep late-en gaging hooks carried by said movable member of the press for withdrawing the tubeplate and tubes from the pins.

10. In an apparatus of the class described and in combination, a press having a bed, a member movable toward and from the bed, and means for moving said movable member; a pin-supporting member mounted upon said bed and having a pad-supporting surface provided with tube-receiving openings; pins projecting through the respective openings beyond said pad-supporting sur face; a tube-carrying plate having projecting tubes arranged to correspond with the respective pins; guiding mechanism whereby said tube-supporting plate is ,movably supported in the path of said movable member of the press with the tubes in alinement with the respective pins; hooks movably mounted upon said movable member of the press; and mechanism including a handoperated member for moving said hooks into and out of engagement with the tube-carrying plate. c

11. In an apparatus of the class described and in combination, a pin-supporting member having a pad-supporting surface provided with openings; pins projecting through the respective openings beyond said pad-supporting surface; a tube-carrying plate having tubes adapted to pass over the respective pins and into the respective openings in said pad-supporting surface; and a guide-plate provided with openings there through, said openings adjacent to the underside of said plate being adapted to freely receive the respective pins and to closely receive the respective tubes, said openings being flared toward the upper side of said plate.

12. In an apparatus of the class described and incombination, a pin-supporting member having a pad-supporting surface provpad provided with openings corresponding in arrangement with those in said guide plate.

13. In an apparatus of the class described and in combination, a pin-supporting member having a pad-supporting surface provided with tube-receiving openings; pins projecting through the respective openings beyond said pad-supporting surface; a tube carrying plate having projecting tubes arranged to correspond with the respective pins; and a guide-plate provided with tube receiving openings arranged to correspond with the respective pins and tubes, and having on its underside gage-pins adapted to engage similarly located gage-openings in a pad provided with openings corresponding in arrangement with those in said guideplate; and guiding means mounted upon said pin-supporting member for guiding said guide-plate and tube-carrying plate toward the pins on the pin-supporting member.

14. In an apparatus of the class described and in combination, a pin-supporting member having a pad-supporting surface provided with tube-receiving openings; pins projecting through the respective openings beyond said pad-supporting surface; a tubecarrying plate having projecting tubes arranged to correspond with the respective pins; a guide-plate provided with tube-receiving openings arranged to correspond with the respective pins and tubes, and having on its underside gage-pins adapted to engage similarly located gage-openings in a pad provided with openings corresponding in arrangement with those in said guide plate, said openings in the guide-plate adj acent to the underside thereof being adapted to freely receive the respective pins and to closely receive the respective tubes, said openings being flared toward the upper side of said plate.

In testimony whereof I have hereunto set my hand this 13th day of December, 1919.

WILLIAM T. SHERMAN. 

